DE278730C - - Google Patents
Info
- Publication number
- DE278730C DE278730C DENDAT278730D DE278730DA DE278730C DE 278730 C DE278730 C DE 278730C DE NDAT278730 D DENDAT278730 D DE NDAT278730D DE 278730D A DE278730D A DE 278730DA DE 278730 C DE278730 C DE 278730C
- Authority
- DE
- Germany
- Prior art keywords
- double
- walled
- bell
- protective
- incandescent lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
- F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L2/00—Systems of electric lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
- F21V25/06—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken feeding a quenching fluid to the light source
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE278730C true DE278730C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=534704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT278730D Active DE278730C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE278730C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026868B (de) * | 1953-05-26 | 1958-03-27 | Oldham & Son Ltd | Explosionssichere, tragbare elektrische Lampe |
-
0
- DE DENDAT278730D patent/DE278730C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026868B (de) * | 1953-05-26 | 1958-03-27 | Oldham & Son Ltd | Explosionssichere, tragbare elektrische Lampe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE716721C (de) | Geraet zur Bestimmung von Gasdruecken | |
| DE572083C (de) | Hochspannungs-Hochvakuumschalter | |
| DE278730C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE684577C (de) | Einsockelige elektrische Metalldampfentladungslampe mit umschliessendem Waermeschutzmantel | |
| DE1133572B (de) | Entladungsroehre mit einer Hohlkathode und einer gekapselten Huelle | |
| DE4031117A1 (de) | Hochdruckentladungslampe und verfahren zur herstellung der lampe | |
| DE634693C (de) | Schlagwettersichere Schaltsteckdose | |
| DE1168994B (de) | Kontaktantrieb fuer elektrische Druckgasschalter | |
| DE681105C (de) | Hochspannungslastschalter mit Lichtbogenloeschung durch einen Luftstrom | |
| DE4031116A1 (de) | Hochdruckentladungslampe und verfahren zur herstellung der lampe | |
| DE1041570B (de) | Schalteinrichtung | |
| DE1216964B (de) | Elektrischer Schalter | |
| DE2440829B2 (de) | Vakuumschaltrohr | |
| DE446121C (de) | Schaltkontakt, bei dem die Unterbrechung und Kontaktbildung innerhalb einer mit koerniger oder pulverfoermiger Isoliermasse gefuellten Kammer erfolgt | |
| DE668582C (de) | Einrichtung zur Anzeige der Stellung von im Zuge einer Leitung liegenden beweglichen Organen | |
| DE59343C (de) | Unterbrechungsvorrichtung für Glühlampen | |
| DE202634C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE883783C (de) | Glimmrelais | |
| DE817174C (de) | Elektrischer Kontakt mit laengs geschlitztem federndem Rohrstueck | |
| DE588180C (de) | Gasanzeiger | |
| DE948539C (de) | Wasserdichte Fassung fuer Leuchtstofflampen | |
| DE225944C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE520541C (de) | Elektrische Schaltanlage mit einem beweglichen Schaltapparat | |
| DE257972C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE429653C (de) | Elektrische Zuendvorrichtung |